"A Festival Trade! A Fesival Farewell?" is an episode of the animated TV series Pokémon XY: Kalos Quest which makes suitable viewing for Halloween. It first aired in the United States on September 26, 2015.
Ash, his friends, and Team Rocket have just arrived at a costume festival to have a good time. During the festivities, Jessie sees a Pumpkaboo falling in love with hers. She decides to do something to help it but things go the other way around.